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Generic and Species ACCOUNTS Plum. Ex Mill., Gard. Dict. Ed. 6

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Generic and Species ACCOUNTS Plum. Ex Mill., Gard. Dict. Ed. 6 CRIBB & WHISTLER- Orchids of Tonga, Niue, and the Cook Islands 121 GENERIC AND SPECIES ACCOUNTS 1. VANILLA Plum. ex Mill., Gard. Dict. Ed. 6. 1752. Scrambling or climbing vines or lianas with thick adventitious roots emerging opposite the leaves, and fleshy, green, often branching stems leafy along their length. Leaves conduplicate, fleshy, well-developed and dorsi-ventrally flattened, or scale-like. Inflorescence lateral, short, densely few- to many-flowered; peduncle and rachis fleshy, green; bracts persistent or not, shorter than the pedicel and ovary. Flowers large, resupinate, fleshy, short-lived, often showy; pedicel and ovary green. Sepals and petals free, linear-lanceolate or linear- oblanceolate, acute. Lip free or with margins fused to column sides, porrect, three-lobed, often obscurely so, more or less enclosing the column, lacking a spur, with a callus of hairs or lacerate flaps. Column slender, elongate, lacking a foot, often hairy on lower surface; pollinia four, mealy. Fruit a dehiscent capsule or slightly dehiscent berry, often strongly fragrant. A genus of about 107 species widely distributed in the New and Old World tropics. Two species are cultivated in the Pacific islands, especially in the Society Islands, and are occasionally found as escapes. A single species is grown in Tonga, the Cook Islands, and Niue (and is one of the two cultivated species in the Society Islands), and is occasionally found as an escape. Vanilla planifolia Andrews, Bot. Repos. 8: t. 538. 1808. Lectotype: cult. Greville (illustration cited here). For full synonymy, see Kores (1991). Climbing vine or liana up to 15 m long. Stem circular in cross-section, 1–2 cm in diameter, green. Leaves oblong or oblong-elliptic, acute, 8–25 × 2–8 cm. Inflorescence lateral, densely many-flowered, 5–8 cm long. Flowers large, green, with a creamy-green lip. Sepals and petals linear-oblanceolate, 4–7 × 1–1.5 cm. Lip 3-lobed, 4–5 × 1.5–3 cm, with irregular dentate lateral margins; callus of several reflexed fimbriate plates in upper part of lip. Column 3–4 cm long, puberulous on lower surface. Fig. 17. DISTRIBUTION. Native to Mexico and Central America. Widely cultivated around the tropics. Introduced to Tonga (Vava‘u), the Cook Islands (Sykes, pers. comm.), and Niue, where it is established in the wild. HABITAT. Uncommon in lowland to montane forest, especially in secondary forest, and sometimes in gardens. COLLECTIONS. Vava‘u: Whistler (sight record). Rarotonga: Sykes (sight record). Niue: Sykes CHR 150572; Yuncker 9856. 2. ERYTHRODES Blume, Bijdr. Fl. Ned. Ind.: 410. 1825. Physurus Rich., De Orchid. Eur.: 33 (1817) nom. nud.; Rich. ex Lindl., Gen. Sp. Orchid. Pl.: 501(1840). Small to medium-sized terrestrial herbs with fleshy creeping rhizomes rooting at the nodes, and erect, leafy fertile shoots. Leaves not articulate, thin-textured. Inflorescence terminal, erect, racemose, many- flowered. Flowers small, not opening widely, resupinate. Dorsal sepal with the petals forming a hood over the column. Lateral sepals spreading. Petals entire, membranous, narrower than the sepals. Lip appressed to the column, entire or with a small apical recurved blade, prolonged at the base into a spur that projects LANKESTERIANA 11(2), August 2011. © Universidad de Costa Rica, 2011. 122 LANKESTERIANA between the lateral sepals; spur entire or bilobed, short to long, with 2–4 sessile calli within. Column short; anther erect; pollinia two, sectile, clavate, attached by caudicles to a small viscidium; rostellum short, bilobed. A genus of about 100 species widespread in the tropics of the New World, tropical Asia, and the Pacific region, but absent from Africa. Two species are reported from Tonga. KEY TO SPECIES 1. Sepals 6–8 mm long, densely hairy; lip apex acute; leaves 5–10 cm long 1. E. oxyglossa 1. Sepals 2.5–4 mm long, glabrous or sparsely hairy on outer surface; lip apex a small ovate, obtuse blade; leaves 3–5.5 cm long 2. E. purpurascens 1. Erythrodes oxyglossa Schltr., Bot. Jahrb. Syst. 39: 53. 1906. Type: New Caledonia, Schlechter 15749 (holotype B†). Erythrodes lilyana (H. Fleishm. & Rech.) Schltr., Repert. Spec. Nov. Regni Veg. 9: 87. 1910. Physurus lilyanus H. Fleischm. & Rech., Denkschr. Kaiserl. Akad. Wiss., Wien. Math.-Naturwiss. Kl. 85: 253, t. 1, fig. 3. 1910. Types: Samoa,Rechinger 63, 1515, 1590 (all syntypes W!). Terrestrial herb 25–40 cm in height. Leaves obliquely oblong-lanceolate to oblong-ovate, acuminate, 5–10 × 1.5–2.5 cm; petiole slender, 2.5–3.3 cm long. Inflorescence 12–27 cm long, many-flowered; peduncle pubescent in upper part; rachis pubescent; bracts lanceolate, 8–10 mm long, hairy. Flowers dull brownish white, pubescent on the outside of the sepals. Sepals lanceolate, 6–8 × 1.7–2.3 mm, densely hairy. Petals obliquely oblanceolate, acute, 5.5–7.5 × 1.5–1.7 mm. Lip 6–8.5 mm long, lanceolate to oblong-lanceolate, acute; spur bilobed at apex, 2.5–3.5 mm long, with 2 small glands within. Column 2.5–3.5 mm long. Fig. 18. DISTRIBUTION. Tonga (Kao and Tofua). Also in New Caledonia, Fiji, and Samoa. HABITAT. Uncommon in foothill to montane forest on ridges of volcanic islands; 300 to ca. 1000 m. COLLECTIONS. Kao: Buelow 621, 3004, 3197. Tofua: Buelow 439; Whistler 10602. 2. Erythrodes purpurascens Schltr., K. Schum. & Lauterb., Fl. Schutzgeb. Südsee, Nachtr.: 88. 1905. Type: Papua New Guinea, Paub, Schlechter 14616 (holotype B†). Cheirostylis sp. sensu Yuncker, Bernice P. Bishop Mus. Bull. 184: 31. 1945. Terrestrial herb up to 32 cm in height. Leaves obliquely ovate, acute, 3–5.5 × 1.5–2.2 cm. Inflorescence up to 28 cm long; bracts lanceolate, acuminate, 5–8 mm long. Flowers white within, brown on outside and with brown marks on lip, small, 4–6 mm long; pedicel and ovary 6–8 mm long, pubescent. Sepals elliptic-lanceolate, 2.5–4 × ca. 1 mm, glabrous or very sparsely pubescent on outer surface. Petals obliquely oblanceolate, acute, 2.5–3.5 × 0.7–0.8 mm. Lip subpandurate, 2.5–4.5 mm long, the apical lamina ovate, obtuse; spur 1.5–2.5 mm long, bilobed, usually with 2 small calli within. Column 2.5–3.5 mm long. Fig. 19. DISTRIBUTION. Tonga (Kao and Tofua). Also in New Guinea, Fiji, and Samoa. HABITAT. Uncommon among rocks and in small gullies in scrubby montane forest; 300–450 m. COLLECTIONS. Kao: Buelow 2940, 3005. Tofua: Buelow 469, 2541; Whistler 10603. NOTE. We have assigned these collections to E. purpurascens rather than to E. parvula Kores because the latter lacks calli on the lip. LANKESTERIANA 11(2), August 2011. © Universidad de Costa Rica, 2011. CRIBB & WHISTLER- Orchids of Tonga, Niue, and the Cook Islands 123 3. GOODYERA R. Br., Aiton & W.T.Aiton, Hortus Kew ed. 2, 5: 197. 1813. Terrestrial herbs with creeping fleshy rhizomes rooting at the nodes, and erect, fleshy, leafy fertile shoots. Leaves thin-textured to fleshy, not articulated. Inflorescence terminal, racemose, few- to many-flowered. Flowers small, resupinate, usually tubular but never opening widely. Dorsal sepal and petals connivent into a hood over the column. Lateral sepals porrect, reflexed or spreading somewhat. Lip parallel to column, entire, deeply saccate at the base, with numerous thread-like calli within. Column short to long; anther erect, persistent; pollinia two, sectile, clavate, often deeply divided, attached by caudicles to a rather large viscidium; rostellum long, bilobed. A genus of about 40 species found in both temperate and tropical parts of the Old and New Worlds, but not in Africa. A single species is reported from Tonga. Goodyera rubicunda (Blume) Lindl.,Edward’s Bot. Reg. 25: 61, misc. 92. 1839. Type: Java, Blume s.n. (holotype L!, isotype P!). Goodyera anomala Schltr., Repert. Spec. Nov. Regni Veg. 9: 86. 1910. Type: Samoa, Vaupel 405 (syntype B†). Goodyera biflora sensu Kraenzl., Bot. Jarhb. Syst. 25: 600. 1898, non Hook. f. Goodyera grandis (Blume) Blume, Fl. Javae ser. 2, 1, Orch.: 36. 1858. Goodyera rubens Blume, Fl. Javae ser. 2, 1, Orch.: 36, t. 9. 1858) Goodyera rubicunda (Blume) Lindl. var. triandra (Schltr.) N. Hallé, Fl. Nouv.-Caléd. 8: 532. 1977. Goodyera triandra Schltr., Bull. Herb. Boissier II, 6: 298. 1906. Type: Vanuatu, Morrison s.n. (holotype B†, isotype AMES!). Goodyera waitziana sensu H. Fleischm. & Rech., Denkschr. Kaiserl. Akad. Wiss., Wien. Math.- Naturwiss. Kl. 85: 254. 1910, non Blume. Neottia grandis Blume, Bijdr. Fl. Ned. Ind.: 407. 1825. Neottia rubicunda Blume, loc. cit.: 408. 1825. Terrestrial herb up to 70 cm in height; rhizome creeping. Leaves obliquely elliptic to elliptic-lanceolate, acute or acuminate, 12–18 × 3.5–6 cm, long-petiolate, margins crisped-undulate. Inflorescence up to 40 cm long, pubescent. Flowers orangish, reddish brown or greenish pink, sometimes abnormal and triandrous. Sepals ovate or narrowly ovate, acute, 7–8.5 × 2.5–4 mm, densely pubescent. Petals clawed, obliquely ovate to subrhombic, acute, 7–7.5 × 2.5–3 mm. Lip entire, 6–7.5 mm long, saccate at base, recurved and ligulate at apex. Column 5–6.5 mm long. Fig. 20. DISTRIBUTION. Tonga (‘Eua). Also from southern Ryukyu Islands and Malaya throughout Malesia to northern Australia and eastwards to the Solomon Islands, Vanuatu, Fiji, and Samoa. HABITAT. Uncommon in lowland and montane forest on volcanic soils; 250–300 m. COLLECTIONS. ‘Eua: Buelow 2516; Hotta 5226, 5272; Hurlimann 260; Sykes 351, 412, 488; Whistler 6483, 12165; Wood 6846. NOTE. Plants with abnormal flowers having three anthers are sometimes found. 4. HETAERIA Blume, Bijdr. Fl. Ned. Ind.: 409. 1825. Small to medium-sized terrestrial herbs with fleshy creeping rhizomes rooting at the nodes, and erect, leafy LANKESTERIANA 11(2), August 2011. © Universidad de Costa Rica, 2011. 124 LANKESTERIANA stems. Leaves simple, membranous, petiolate and sheathing at the base.
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